31020011002001 has 8 divisors (see below), whose sum is σ = 36052313029440. Its totient is φ = 26137926945648.

The previous prime is 31020011001949. The next prime is 31020011002007. The reversal of 31020011002001 is 10020011002013.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-31020011002001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31020011002007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37554492326 + ... + 37554493151.

It is an arithmetic number, because the mean of its divisors is an integer number (4506539128680).

Almost surely, 2^{31020011002001} is an apocalyptic number.

It is an amenable number.

31020011002001 is a deficient number, since it is larger than the sum of its proper divisors (5032302027439).

31020011002001 is an equidigital number, since it uses as much as digits as its factorization.

31020011002001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75108985543.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 31020011002001 its product of nonzero digits (12), we get a palindrome (31020011002013).

Adding to 31020011002001 its reverse (10020011002013), we get a palindrome (41040022004014).

The spelling of 31020011002001 in words is "thirty-one trillion, twenty billion, eleven million, two thousand, one".